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Proceedings Paper

Separation Of Vibration Modes Of Different Frequencies By Synchronized Holographic Interferometry
Author(s): F. H. Groen; R. A. Rooth
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Paper Abstract

Interference holography with a pulsed ruby laser is used for analyzing the vibration pattern of an acoustic source. In our experiments the pattern was composed of two different vibrational modes. The pattern pertaining to a single mode can be obtained from the interpretation of a set of two holographic interferograms, taken under electronically controlled conditions. The interpretation methods that have been used were a moire-technique and an automated digital technique. Applications of these techniques in a few cases are discussed, and the effect of small timing errors in the electronic system on the results is determined.

Paper Details

Date Published: 13 December 1983
PDF: 7 pages
Proc. SPIE 0370, Holographic Data Nondestructive Testing, (13 December 1983); doi: 10.1117/12.934877
Show Author Affiliations
F. H. Groen, Delft University of Technology (The Netherlands)
R. A. Rooth, Delft University of Technology (The Netherlands)

Published in SPIE Proceedings Vol. 0370:
Holographic Data Nondestructive Testing
Dalibor Vukicevic, Editor(s)

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